User:Eleni N. Kalivas/Notebook/CHEM-571/2013/10/01: Difference between revisions

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|style="background-color: #EEE"|[[Image:owwnotebook_icon.png|128px]]<span style="font-size:22px;"> Project name</span>
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|style="background-color: #F2F2F2" align="center"|<html><img src="/images/9/94/Report.png" border="0" /></html> [[{{#sub:{{FULLPAGENAME}}|0|-11}}|Main project page]]<br />{{#if:{{#lnpreventry:{{FULLPAGENAME}}}}|<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>[[{{#lnpreventry:{{FULLPAGENAME}}}}{{!}}Previous entry]]<html>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</html>}}{{#if:{{#lnnextentry:{{FULLPAGENAME}}}}|[[{{#lnnextentry:{{FULLPAGENAME}}}}{{!}}Next entry]]<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html>}}
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==Entry title==
==Objective==
* Insert content here...
To monitor the kinetics and yield of the horseradish peroxidase-catalyzed oxidation of luminol. These experiments will be compared to future experiments with HRP-functionalized nanoparticles. These experiments are also meant to introduce researchers to stopped-flow techniques and rapid data collection.
 
==Protocol==
the following protocol was taken from [[User:Matt Hartings/Notebook/AU Biomaterials Design Lab/2013/10/01|Matt Hartings]]
 
Three sets of measurements will be performed today.
# UV-Vis Absorbance of reactants, catalysts, and products
## horseradish peroxidase (Use stock solution)
## luminol (use stock solution)
## 3-aminophthalic acid (product of reaction between luminol and H2O2 catalyzed by HRP. In order to take this measurement, react (in 1:1 ratio or with slight excess H2O2) luminol with H2O2 in presence of HRP. Allow the reaction to proceed for 5 minutes; take the spectrum)
# Chemiluminescence of luminol oxidation reaction initiated by stopped flow mixer
## Add HRP/Luminol stock solution to stopped flow mixer
## Add H2O2 stock solution to stopped flow mixer
## equilibrate mixer tubes with sample.
## Initiate Mixing
## Measure light produced as result of reaction, integrated over a specific time range
## Integrate area under the curve
# Kinetics of luminol oxidized by changes in absorption spectrum, reaction carried out in stopped flow mixer
## Add HRP/Luminol stock solution to stopped flow mixer
## Add H2O2 stock solution to stopped flow mixer
## equilibrate mixer tubes with sample.
## Initiate Mixing
## Using luminol and 3-aminophthalic acid spectra as endpoints, determine the kinetics of 3-aminophthalic acid synthesis.
 
==UV vis==
Corrected Absorbance Spectra of preliminary kinetics
[[Image:HRP diluteluminol h2o2 zem.png|750px]]
 
Kinetics of luminol oxidized by HRP
 
[[Image:Kineticsmonitoringzem10012013.png|750px]]
 
[[Image:Kinematicsincreaseprdtzem10012013.png|750px]]




Latest revision as of 23:24, 26 September 2017

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Objective

To monitor the kinetics and yield of the horseradish peroxidase-catalyzed oxidation of luminol. These experiments will be compared to future experiments with HRP-functionalized nanoparticles. These experiments are also meant to introduce researchers to stopped-flow techniques and rapid data collection.

Protocol

the following protocol was taken from Matt Hartings

Three sets of measurements will be performed today.

  1. UV-Vis Absorbance of reactants, catalysts, and products
    1. horseradish peroxidase (Use stock solution)
    2. luminol (use stock solution)
    3. 3-aminophthalic acid (product of reaction between luminol and H2O2 catalyzed by HRP. In order to take this measurement, react (in 1:1 ratio or with slight excess H2O2) luminol with H2O2 in presence of HRP. Allow the reaction to proceed for 5 minutes; take the spectrum)
  2. Chemiluminescence of luminol oxidation reaction initiated by stopped flow mixer
    1. Add HRP/Luminol stock solution to stopped flow mixer
    2. Add H2O2 stock solution to stopped flow mixer
    3. equilibrate mixer tubes with sample.
    4. Initiate Mixing
    5. Measure light produced as result of reaction, integrated over a specific time range
    6. Integrate area under the curve
  3. Kinetics of luminol oxidized by changes in absorption spectrum, reaction carried out in stopped flow mixer
    1. Add HRP/Luminol stock solution to stopped flow mixer
    2. Add H2O2 stock solution to stopped flow mixer
    3. equilibrate mixer tubes with sample.
    4. Initiate Mixing
    5. Using luminol and 3-aminophthalic acid spectra as endpoints, determine the kinetics of 3-aminophthalic acid synthesis.

UV vis

Corrected Absorbance Spectra of preliminary kinetics

Kinetics of luminol oxidized by HRP



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